Approximately 15 letters have been received both in Holt and the surrounding villages at different households and premises over the past 12 months. They usually take the form of an anonymous hand written letter sent directly to the address, often containing malicious content towards the addressed person.

PC Anna Rooke said: “These letters have been sent to a range of different addresses over the past year. We have slowly continued to receive reports of them arriving either by people bringing them into the station or via our community police surgeries in the area. We are asking anyone who may have received something like this in Holt or the surrounding villages to come forward.”

• Anyone who may have received a letter such as this or who may have further information should contact PCSO Keith Clarke at Holt Police Station on 101 or alternatively call Crimestopper anonymously on 0800 555 111.